6
votes
2answers
164 views

What is causing this weird distortion coming from my amp?

Here is the sound I'm talking about. I get this sound, unless I strum ridiculously lightly, on different amp volume settings, with no gain, ...
10
votes
5answers
2k views

Is it okay to sit on guitar combo amplifier?

I just bought a 1x10" Marshall combo guitar amp, and I've read in articles that many guitarists sit on their amps. Is it okay to sit on it? Is there any chance of breaking it as a result?
2
votes
3answers
125 views

Bass guitar amp power socket issues

I have a rather unusual question. I have a Fender Affinity Jazz Bass starter kit and it comes with a 15W amp - "Rumble 15 Bass Combo Amp". I also have a cat in the house, and every time I don't cover ...
18
votes
4answers
870 views

When should I be concerned about calibrating the bias of vacuum tubes in an amplifier?

I think it would be useful to discuss the concept of bias as it pertains to guitar amplifiers. I have read some articles saying that you should always rebias your amplifier when you change the power ...
18
votes
5answers
15k views

How do I know when it's time to change a tube on my amplifier?

I think this would be a wonderfully instructive question to people who are new to tube amplifiers. In short, how do I know that it's time to change a tube, and what's a good strategy for figuring out ...